"Caleb's death has raised many questions about how and why this
could happen to a seemingly healthy boy," Katie wrote on Instagram. "Sadly, tests have confirmed today that
Caleb passed away from an undetected medical condition. We'll
have more definitive answers in the coming weeks but ask that you
help us celebrate his life instead of focus on his death."

On Monday, a spokeswoman for the
Anne Arundel County, Maryland, police department said that
police responded to the family's home in Arnold, Maryland,
for a “medical emergency.” Caleb was transported to a local
hospital, where he was pronounced dead.

There were no signs of drugs or violence, and the police are no
longer investigating the death.

Caleb's memorial will be live-streamed Tuesday at 8
p.m. ET. More information can be found at Periscope at @bratayley
and on Facebook at Facebook.com/bratayley.

The Bratayleys began posting "family friendly
content" on YouTubein December 2010. In the
years that followed, they would attract more than 1.6 million
fans.

Caleb also had his own YouTube channelin which he
primarily made videos about the video game "Minecraft." He's
followed by more than 113,000 people there.